Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women
Open accessAbstract
Dietary constituents including polyphenols and carotenoids contribute to endogenous photoprotection and modulate skin characteristics related to structure and function of the tissue. Animal and in-vitro studies indicate that green tea polyphenols affect skin properties. In a 12-wk, double-blind, placebo-controlled study, 60 female volunteers were randomized to an intervention or control group. Participants consumed either a beverage with green tea polyphenols providing 1402 mg total catechins/d or a control beverage. Skin photoprotection, structure, and function were measured at baseline (wk 0), wk 6, and wk 12. Following exposure of the skin areas to 1.25 minimal erythemal dose of radiation from a solar simulator, UV-induced erythema decreased significantly in the intervention group by 16 and 25% after 6 and 12 wk, respectively. Skin structural characteristics that were positively affected included elasticity, roughness, scaling, density, and water homeostasis. Intake of the green tea polyphenol beverage for 12 wk increased blood flow and oxygen delivery to the skin. Likewise, in a separate, randomized, double-blind, single-dose (0.5, 1.0, and 2.0 g) study of green tea polyphenols, blood flow was maximized at 30 min after ingestion. In summary, green tea polyphenols delivered in a beverage were shown to protect skin against harmful UV radiation and helped to improve overall skin quality of women.
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After a 12-week period of consistent consumption, polyphenols improved elasticity, roughness, scaling, density, and UV-induced erythema by 25%.
“After a 12 w period of consistent consumption, polyphenols improved the elasticity, roughness, scaling, density, and UV-induced erythema by 25% [54].”
From AN OVERVIEW OF NEW TRENDS IN THE COSMETICS INDUSTRY (2025) · cites this paper as [54]
The Abstract reports that after 12 weeks, UV-induced erythema decreased by 25% and elasticity, roughness, scaling, and density were positively affected. The Skin function and structure results give different changes for those skin properties, so the cited paper does not support a 25% improvement in all five measures. Page numbers are not available in our copy. (LLM, conf=0.92)
Experimental — accuracy not yet measuredOral supplementation with green tea polyphenols containing catechin, epicatechin, epigallocatechingallate, epicatechingallate, epigallocatechin, and glucuronidase/sulfatase protects against UV-induced sunburn response, immunosuppression, and photoaging of skin.
“Indeed, oral supplementation with green tea polyphenols containing catechin, epicatechin, epigallocatechingallate, epicatechingallate, epigallocatechin, and glucuronidase/sulfatase protects against the UV-induced sunburn response, immunosuppression, and photoaging of the skin.”
From Boosting the Photoaged Skin: The Potential Role of Dietary Components (2021) · cites this paper as [114]
In a 12-week double-blind placebo-controlled study, supplementation with green tea polyphenols significantly reduced UV-induced erythema in facial skin, improved skin elasticity, roughness, density, and water homeostasis, and increased blood flow and oxygen delivery to skin.
“In a 12-week, double-blind, placebo-controlled study, supplementation with green tea polyphenols significantly reduced the UV-induced erythema in facial skin, improved skin elasticity, roughness, density, and water homeostasis, and increased the blood flow and oxygen delivery to the skin [114].”
From Boosting the Photoaged Skin: The Potential Role of Dietary Components (2021) · cites this paper as [114]
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- Authors
- Heinrich, U., Moore, C. E., De Spirt, S., Tronnier, H., & Stahl, W.
- Affiliations
- Witten/Herdecke University (DE)
- Texas Woman's University (US)
- Heinrich Heine University Düsseldorf (DE)
- Corresponding author
- Moore, Carolyn E.
- Venue
- The Journal of Nutrition
- Publisher
- Elsevier BV
- Published
- 2011-06
- Volume
- 141
- Issue
- 6
- Pages
- 1202-1208
- ISSN
- 0022-3166 (ISSN-L)
- OpenAlex
- W2107822016
- Cited by
- 142
- References
- 29
- Citations by year
- 2026: 7 · 2025: 5 · 2024: 14 · 2023: 6 · 2022: 13 · 2021: 13 · 2020: 9 · 2019: 13 · 2018: 14 · 2017: 8 · 2016: 12 · 2015: 8 · 2014: 6 · 2013: 6 · 2012: 7
- FWCI
- 8.53
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Nutrition (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Dermatology › Skin Protection and Aging
- Health Sciences › Medicine › Pathology and Forensic Medicine › Tea Polyphenols and Effects
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Keywords
- green tea polyphenols, catechins, photoprotection, UV-induced erythema, skin microcirculation, skin blood flow, skin elasticity, skin roughness, dietary supplementation, women
- MeSH terms
- Adult, Aged, Catechin, Double-Blind Method, Erythema, Female, Flavonoids, Humans, Microcirculation, Middle Aged, Phenols, Radiation-Protective Agents, Skin, Tea, Ultraviolet Rays, Polyphenols
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